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Table of Contents

Warning
titlePrevent SQL injection

When using Hash Variable that uses URL parameter or user-inputted value in the SQL query, ensure that these hash variable(s) are escaped in the query!

Make use of hash variable escape keywords, see Hash Variable - Escaping the Resultant Hash Variable.

Example of VULNERABLE query :

SELECT * FROM app_fd_sample_table WHERE  c_value = '#requestParam.id#'

To fix this, use ?sql hash variable escape:

SELECT * FROM app_fd_sample_table WHERE c_value = '#requestParam.id?sql#'

Introduction

English
JDBC Options Binder allows you to retrieve form option records from Joget or a custom database via user-defined SQL query statements.

JDBC

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Options Binder Properties

Configure JDBC

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Options Binder

Image Added

Figure 1: JDBC Options Option Binder Properties

NameDescription
Screens (Click to view)Datasource
Datasource

Target database to execute SQL statements on.

Choices:-

  • Custom Datasource
    • JDBC Connection Parameters are needed for this choice.
Custom Datasource, the
  • Default Datasource
    By selecting Default Datasource
      • Points to the current database your copy of Joget
    is currently using will be selected.

    Image Removed
    Figure 1: JDBC Option Binder
    Properties

      • currently connects to.
    Custom JDBC Driver
    Custom

    JDBC

    Driver. This field is required when Custom Datasource is selected in Datasource

    driver name.

    Example values:

    • com
     above. Example: com
    • .mysql.jdbc.Driver(MySQL)
    • oracle.jdbc.driver.OracleDriver (Oracle)
    • com.microsoft.sqlserver.jdbc.SQLServerDriver (Microsoft SQL Server)

    Only applicable to "Custom Datasource" option.

    Custom JDBC URL 
    Custom JDBC

    Database connection URL.

    This field is required when Custom Datasource is selected in Datasource above.

    Example:

     jdbc

     jdbc:mysql://localhost

    /jwdb?characterEncoding=UTF8&useSSL=false

    :3306/jwdb

    Only applicable to "Custom Datasource" option.

    Custom JDBC Username 
    Custom JDBC Username. This field is required when Custom Datasource is selected in Datasource

    Database username.

    Example: root

    Only applicable to "Custom Datasource" option

     above

    .

    Custom JDBC Password
    Custom JDBC Password. This field is required when Custom Datasource is selected in Datasource above

    Specified database user's password.

    Only applicable to "Custom Datasource" option.

    Info
    titleTest the connection parameters

    Click on the "Test Connection" button at the bottom of the page to quickly test out your configurations.

    Use AJAX for cascade options?

    When checked, this allows these fields to dynamically load available options based on the other field value (grouping column) when dealing with tremendous amount of selections. Read more at Ajax Cascading Drop-Down List.

    Info
    titleImportant

    Do not forget to configure the dependency field in Field ID to control available option based on Grouping in the

    next

    Advanced Options tab.

    Image Modified
    Info
    titleImportant

    Use question mark (?) in your SQL SELECT Query to represent dependency values.

    Add Empty Option

    Click this checkbox if you want an empty option in the selectbox.  Clicking this option will display the following field:

    • Empty Option Label - Enter your "empty" label, for example "Select".
    SQL SELECT Query
    Note

    If a column name contains reserved keywords, do ensure it is encapsulated properly.

    For example for MySQL, if the column identifier itself contains a dot symbol ( . ), it should be encapsulated like this:

    Code Block
    languagesql
    SELECT `myAppName.myColumn` FROM app_fd_myTable;

    To populate a selectbox, for example, you need to return at least 2 columns. The first column is used for Id. The second column is used for Label.
    An optional third column can be returned for grouping value if for example, you are using the select box "Field ID to control available options based on Grouping" property field.

    Code Block
    languagesql
    titleExample
    linenumberstrue
    SELECT
   username,
    CONCAT(lastName, ' ', firstName) 
    username
FROM
   dir_user 
ORDER BY
    lastName
    username ASC

    When Use AJAX for cascade

    options?

    options is checked, make sure that a question mark is placed within the query.

    Code Block
    languagesql
    titleExample
    linenumberstrue
    SELECT
   username,
   CONCAT(lastName, ' ', firstName) 
FROM
   dir_user 
WHERE
   timeZone = (?)

    On multi-select box form element on cascade and when using JDBC, remember to use  brackets  to enclose the ? parameter in
    "WHERE id IN (?)" :

    Code Block
    languagesql
    titleExample
    linenumberstrue
    SELECT
   id,
   c_field1
FROM
   app_fd_myTable
WHERE
   id IN (?)


    Info
    titleTable & Column Naming
    • For database tables created by Joget Forms, Joget adds a "c_" in front of table column names (or "t_" if your column name starts with a number) and "app_fd_" in front of database table names.
    • If you use environment hash variables to store SQL query strings, use "?noescape" to escape SQL query strings in JDBC binders to prevent the "<>" "not equal" operator from being converted, i.e. disables XSS prevention checking. Read here for more information..

    Related JDBC Binders & Useful Links

    Download Demo

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    App

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